Fix text-saving.
Some name refactoring for clearer meaning (also docu)
Fix file headers and indentations
Fix already sung points calculation
Fix points animation
Remove unnecessary golden property
Add requirement checks at program start.
Merge branch 'release-0.3' into develop
Merge pull request #78 from Flamefire/release-0.3

Nice Feature! Merged!
Fix profiles-bug in names-selection
Some fixes and support for more than 2 voices
Fix overlapping notes
More consistent CLyric
Some renaming for clearer meaning
Split CSong to have single file for note and header reading.
Some simpler assignments and more error checking
Use actual set encoding
Do not add line before first line
Calculate start beat automatically
More stable note loading with better warnings
Debug showcase for line break ordering
Introduce SongLoader class as some fields are only required while loading
Change relative to be a bool
Rename SongLoader file
Easier logging in SongLoader
Simplify song-image detection
Store comment as 1 string